In 1884 he enrolled as an evening pupil at the Dublin Metropolitan School of Art (DMSA), later attending as a full-time student from 1906 to 1911.
During his time at the DMSA he was taught and strongly influenced by John Hughes, Oliver Sheppard and William Orpen.
[5] Power married Agnes Kelly in 1903.The couple had 10 children, 4 daughters and 6 sons,[5] including May and James who also became sculptors.
Power executed a wide range of works, including monuments and architectural features in bronze, marble, and stone.
Among is notable works are the figure of "Science" designed by Sheppard from the façade of the new Royal College of Science (later Government Buildings) on Merrion Street, Dublin, carved motifs and sphinxes for the Gresham Hotel, O'Connell Street, and 4 statues on the dome of Christ the King church, Carndonagh.
[5] On Gogarty's recommendation, Power was commissioned by the Irish Free State governments to create portraits of a number of leading politicians including Arthur Griffith (1922), Michael Collins (1936), and Austin Stack (1939).